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Dissolution study of Spironolactone by using solid dispersion technique

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Author(s): Irwin Dewan | SM Ashraful Islam | Mohammad Shahriar

Journal: Stamford Journal of Pharmaceutical Sciences
ISSN 1999-7108

Volume: 4;
Issue: 2;
Start page: 42;
Date: 2011;
Original page

Keywords: Solid dispersion | Spirinolactone | Dissolution | Bioavailability

ABSTRACT
The main objective of the current study was to formulate poorly water soluble drug Spirinolactone by using solid dispersion technique in order to achieve a better dissolution rate which would further help in enhancing oral bioavailability. Solid dispersions were prepared using two methods; solvent method and fusion method. Solid dispersion was prepared by using polymers, such as Hydroxy propylymethyl cellulose (HPMC 6cp), Hydroxy propyl cellulose (HPC), Sodium carboxymethylcellulose (Na-CMC), Povidone K12, Povidone K30, Poloxamer 407. Solid dispersions containing Spironolactone with HPC (96.81%), HPMC 6cp (93.05%), Poloxamer 407 (90.84%) and Na-CMC (89.93%) provided higher release rate than the release rate of solid dispersion containing only Spironolactone (35.27%), and Spironolactone with Povidone K12 (76.17%), Povidone K30 (67.92%). So the present study revealed that the solid dispersion may be an ideal means of drug delivery system for poorly water soluble drugs. Further study in this field was required to establish these drug delivery systems so that in future it can be used effectively in commercial basis.

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